net: phy: davicom: remove the use of .ack_interrupt()

In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.

This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.

Signed-off-by: Ioana Ciornei <[e-mail]>
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/phy/davicom.c

···
 MODULE_LICENSE("GPL");
 
 
+static int dm9161_ack_interrupt(struct phy_device *phydev)
+{
+	int err = phy_read(phydev, MII_DM9161_INTR);
+
+	return (err < 0) ? err : 0;
+}
+
 #define DM9161_DELAY 1
 static int dm9161_config_intr(struct phy_device *phydev)
 {
-	int temp;
+	int temp, err;
 
 	temp = phy_read(phydev, MII_DM9161_INTR);
 
 	if (temp < 0)
 		return temp;
 
-	if (PHY_INTERRUPT_ENABLED == phydev->interrupts)
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = dm9161_ack_interrupt(phydev);
+		if (err)
+			return err;
+
 		temp &= ~(MII_DM9161_INTR_STOP);
-	else
+		err = phy_write(phydev, MII_DM9161_INTR, temp);
+	} else {
 		temp |= MII_DM9161_INTR_STOP;
+		err = phy_write(phydev, MII_DM9161_INTR, temp);
+		if (err)
+			return err;
 
-	temp = phy_write(phydev, MII_DM9161_INTR, temp);
+		err = dm9161_ack_interrupt(phydev);
+	}
 
-	return temp;
+	return err;
 }
 
 static irqreturn_t dm9161_handle_interrupt(struct phy_device *phydev)
···
 	return phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
 }
 
-static int dm9161_ack_interrupt(struct phy_device *phydev)
-{
-	int err = phy_read(phydev, MII_DM9161_INTR);
-
-	return (err < 0) ? err : 0;
-}
-
 static struct phy_driver dm91xx_driver[] = {
 {
 	.phy_id		= 0x0181b880,
···
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
···
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
···
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
···
 	.name		= "Davicom DM9131",
 	.phy_id_mask	= 0x0ffffff0,
 	/* PHY_BASIC_FEATURES */
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 } };